At what frequency range is video typically transmitted in a cable system?

Video signals in a cable system are typically transmitted in the frequency range of 50-865 MHz. This range encompasses the frequencies allocated for various television channels, particularly the analog channels in the earlier standards and the digital channels in more modern cable systems. The bandwidth within this range allows for the transmission of multiple video signals simultaneously, along with audio and data services.

The lower part of this range, from 50 MHz onwards, starts to include the VHF channels and extends into the UHF channels, which are crucial for providing a comprehensive selection of programming. As technology has evolved, cable systems have expanded their bandwidth usage up to 865 MHz to accommodate additional channels and higher-quality video formats, including HD broadcasts and data services like internet access.

Understanding this frequency allocation is essential for technicians who work on cable systems, as they deal with the setup, maintenance, and troubleshooting of equipment that operates within these frequency bands.